*{
  padding: 0;
  margin: 0;
}
div{
  box-sizing: border-box;
}
html,body{
  width: 100%;
  height: 100%;
  box-sizing: border-box;
}
.container{
  width: 100%;
  height: 100%;
  padding: 100px 100px;
  background-color: #add8e6;
}
li{
  list-style: none;
}
.myul{
  display: flex;
  justify-content: space-around;
  height: 100%;
}
.item {
  width: 8%;
  height: 100%;
  background-repeat: no-repeat;
  background-size: cover;
  background-position:center;
  border-radius: 50px;
  margin-left: 20px;
  transition: width 0.5s;
  vertical-align: bottom;
  position: relative;
}
.item > span{
  position: absolute;
  bottom: 2%;
  left: 6%;
  font-size: 18px;
  color: aliceblue;
}
.active{
  width: 68%;
}
.desc{
  display: none;
}
.active > .desc{
  display: block;
}